Hoshizaki KM-2400SRF3, KM-2400SRH3 service manual Problem, Possible Cause, Remedy

Models: KM-2400SRF3 KM-2400SRH3

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PROBLEM

POSSIBLE CAUSE

 

REMEDY

 

l) Controller Board

1.

Defective.

1.

See “II.2[e] CHECKING

 

 

 

 

 

CONTROLLER BOARD.”

 

m) Interlock Switch

1.

“OFF” position.

1.

Move to “ON” position.

 

 

(Cleaning Valve)

2.

Bad contacts.

2.

Check for continuity and

 

 

 

 

 

 

replace.

[2] Water

a) Float switch

1.

Connector disconnected.

1.

Place in position.

continues to

 

2.

Leads opened or defective

2.

Check and replace.

be supplied,

 

 

switch.

 

 

 

 

and the ice-

 

3.

Float does not move freely.

3.

Clean or replace.

 

maker will not

b) Controller Board

1.

Defective.

1.

Replace.

 

start.

 

 

 

 

 

 

 

[3] Compressor

a) Wash Switch

1.

“WASH” position.

1.

Move to “ICE” position.

 

will not start

 

2.

Bad contacts.

2.

Check and replace.

or stops

b) High Pressure

1. Dirty Condenser.

1. Clean.

 

operating

Controller

 

 

 

 

 

 

 

 

2. Ambient or condenser

2. Reduce ambient temp.

 

 

 

water temp. too warm.

 

 

 

 

 

 

3. Refrigerant overcharged.

3.

Recharge.

 

 

 

4. Condenser water pressure

4.

Check and get

 

 

 

too low or off.

 

recommended pressure.

 

 

 

 

 

 

 

 

5. Fan not operating.

5.

See chart 1 - [6].

 

 

 

 

 

 

 

 

 

6.

Refrigerant line or

6.

Clean and replace Drier.

 

 

 

components plugged.

 

 

 

 

 

c) Overload Protector

1. Bad contacts.

1.

Check for continuity and

 

 

 

 

 

replace.

 

 

2.

Voltage too low.

2.

Increase voltage.

 

 

3.

Refrigerant overcharged or

3. Recharge.

 

 

 

undercharged.

 

 

 

 

 

 

4.

Line Valve continues to

4.

Check Line Valve's

 

 

 

close in freeze cycle and

 

operation in freeze cycle

 

 

 

Overload Protector

 

and replace.

 

 

 

operates.

 

 

 

 

 

d) Magnetic Contactor

1. Bad contacts.

1.

Check for continuity and

 

 

 

 

 

replace.

 

 

2.

Coil winding opened.

2.

Replace.

 

e) Compressor

1. Wiring to Compressor.

1. Check for loose

 

 

 

 

 

connection or open, and

 

 

 

 

 

replace.

 

 

2.

Defective.

2.

Replace.

 

 

3.

Protector tripped.

3.

Reduce temperature.

 

f) Controller board

1. Defective.

1.

See “II.2. [e] CHECKING

 

 

 

 

 

CONTROLLER BOARD.”

[4] Water

a) Water Solenoid

1.

Diaphragm does not close.

1.

Check for water leaks

continues to

Valve

 

 

 

with icemaker off.

be supplied in

b) Controller Board

1.

Defective.

1.

See “II.2.[e] CHECKING

freeze cycle.

 

 

 

 

CONTROLLER BOARD.”

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Hoshizaki KM-2400SRF3, KM-2400SRH3 service manual Problem, Possible Cause, Remedy